QUESTION#1 A partially solved PERT problem is detailed in the table below. Times are given in weeks. a. Calculate the expected time for each activity. Enter these values in the appropriate column in the table above. b. Which activities form the critical path? c. What is the estimated time of the critical path? d. What are the project variance and the project standard deviation? e. What is the probability of completion of the project after week 40 ? The network below represents a project being analyzed by the critical path method. Activity durations are indicated on the network. a. Identify the activities on the critical path. b. What is the duration of the critical path? c. Calculate the amount of slack time at activity H. d. If activity I were delayed by ten time units, what would be the impact on the project duration